Wire

Wire is a single electrical conductor that may or may not be insulated by a jacket. See Cable for multiple conductors housed within a single jacket.

Sizing

AWG

American Wire Gauge is the standard system for wire sizing used predominantly in North America. Wire sizes are logarithmically stepped, with a larger gauge signifying a smaller cross section. The formula for calculating diameter of a wire for standard and metric units is as follows:

$d_{n}=0.005~\mathrm {inch} \times 92^{\frac {36-n}{39}}=0.127~\mathrm {mm} \times 92^{\frac {36-n}{39}}$